Through flow sump pump

Abstract

A sump motor is mounted in a section of pipe. The motor is a standard motor having special caps at each end of the motor shell and with the shell forming a waterproof enclosure. The caps have radially extending spacers extending out to the pipe. At each end of the pipe are reducers, the internal diameter of the small ends of which correspond to the external diameter of another, smaller standard pipe size. At the bottom a piece of pipe of the smaller size extends inwardly of the reducer to a location in juxtaposition to the pump impeller. Various connections and mounting arrangements may be made using standard sizes of pipe. In one embodiment the pump is mounted on a vertical track and positioned above a sump. When the water rises to a level in the sump at which pumping should commence, the motor is energized and the pump is lowered along the track into the sump.

I claim: 
     
       1. In a sump pump apparatus including a pump having a frame member, an electric motor, a pump intake opening and a pump discharge connection, and for use in conjunction with a sump in which liquid may accumulate, the improvement comprising: fixed means adjacent said sump and forming a substantially vertical way;   a carriage member mounted on said fixed means for movement along said way and including means connected to said pump for positioning said pump in a vertical position in relation to the vertical position of the carriage;   control means including sensor means having at least part thereof positioned in said sump for detecting when the liquid in the sump has risen at least to a given level and connected to said pump motor for energizing said motor;   latch means engaging one of said members to normally hold said carriage and pump in an elevated position and connected to said control means to release said carriage for gravity descent to a lower position at which the pump intake is below said given level when said pump is energized by said control means.   
     
     
       2. In an apparatus as set forth in claim 1, wherein said control means energizes said motor when said liquid is at or above said level; and   including signaling means connected to said control means to emit a sensory signal when said pump descends.   
     
     
       3. An apparatus as set forth in claim 1 including conduit means connected to said discharge connection, wherein said conduit means comprises: a flexible hose secured to said distal end, said hose being of a length sufficient to permit said pump to move between said elevated position and said lower position.